– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sun 14 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 14 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 14 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 10°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 25°C on Thu afternoon, min 15°C on Wed night). Wind will be generally light. | ||||||||||||||||
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | |  | | | | | | |  | | | |
clear | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | clear | clear | clear | clear | some clouds | some clouds | cloudy | some clouds | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 26 | 23 | 24 | 26 | 21 | 17 | 18 | 16 | 17 | 20 | 18 | 22 | 25 | 21 | 22 | 24 | 21 |
min °C | 26 | 20 | 22 | 26 | 14 | 15 | 17 | 10 | 13 | 19 | 15 | 19 | 25 | 18 | 19 | 24 | 16 |
26 | 20 | 22 | 26 | 14 | 15 | 17 | 10 | 13 | 19 | 15 | 19 | 25 | 18 | 19 | 24 | 16 | |
4250 | 4400 | 4150 | 4100 | 3750 | 3250 | 3400 | 3400 | 3600 | 4000 | 4200 | 4100 | 4250 | 4200 | 4100 | 4150 | 4100 | |
Cloud base (m) | 5150 | 4950 | 2350 | 9250 | 7050 | 6200 | 5100 | 6450 | |||||||||
 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — |
 | — | 9:10 | — | — | 9:12 | — | — | 9:12 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 26°C on Sun afternoon, min 10°C on Tue night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 25°C on Thu afternoon, min 15°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport | |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.